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Authored by Justyna Bartusiak

Chemistry

1st Grade

Used 3+ times

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19 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

K2O to tlenek

sodu

kadmu

potasu

potasu(I)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

K2O to tlenek

sodu

kadmu

potasu

potasu(I)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

P4O10 to tlenek

fosforu

fosforu (III)

fosforu (X)

fosforu (V)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Wzór sumaryczny tlenku ołowiu (IV) to

Pb2O

PbO2

Pb2O4

PbO

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Reakcję otrzymywania tlenku miedzi (II) przedstawia równanie:

Cu + O2 → CuO

Cu + O2 → Cu2O

2Cu + O2 → Cu2O

2Cu + O2 → 2CuO

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

wzór tlenku węgla IV

CO

CO2

C2O

C2O2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

wzór wody (tlenku wodoru)

HO

H2O

HO2

H2O2

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